Base | Representation |
---|---|
bin | 1010011101111… |
… | …01011111111100 |
3 | 20010020002221000 |
4 | 11032331133330 |
5 | 134434323441 |
6 | 12414010300 |
7 | 2114232663 |
oct | 516753774 |
9 | 203202830 |
10 | 87807996 |
11 | 456244a1 |
12 | 254a6990 |
13 | 152652c3 |
14 | b939dda |
15 | 7a972b6 |
hex | 53bd7fc |
87807996 has 48 divisors (see below), whose sum is σ = 235002880. Its totient is φ = 28324080.
The previous prime is 87807991. The next prime is 87808037. The reversal of 87807996 is 69970878.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87807991) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9766 + ... + 16461.
Almost surely, 287807996 is an apocalyptic number.
It is an amenable number.
87807996 is an abundant number, since it is smaller than the sum of its proper divisors (147194884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87807996 is a wasteful number, since it uses less digits than its factorization.
87807996 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26271 (or 26263 counting only the distinct ones).
The product of its (nonzero) digits is 1524096, while the sum is 54.
The square root of 87807996 is about 9370.5920837480. The cubic root of 87807996 is about 444.4722878019.
The spelling of 87807996 in words is "eighty-seven million, eight hundred seven thousand, nine hundred ninety-six".
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